Self-filling fountain pen



Feb. 10, 1931. v C FABRlZlO 1,792,419

SELF FILLING FOUNTAIN PEN Filed F'eb. 14, 1929 www? s? INVENTOR: Carmuee Fanzzao) NMMQWY 15.nor the scope of the appended claims.

Patented Feb. 10, 1931 emma FABRIZIO, or NEW Yoan, N. Y.

SELF-FILLING FOUNTAIN PEN Application filed. February 14, 1929. Serial No. 339,904.

Myv present invention relates to self filling fountain pens and has for its principal object the provision of a Ysimple and novel means for quickly lling an empty fountain pen rapidly with a fresh supply of ink. e

` Another object is to provide means for pumping inkinto `a fountain -pen and to so arrange the pumping means as to permit it to be locked against accidental movement when not in use. v

These and other capabilities will be appre- -hended -as the description proceeds, and itis obvious that modifications may be made herein without departing from the spirit hereof In the drawings, Fig. 1 is a side view of my pen, y Fig.- 2 is a longitudinal sectional view thereof; shown in pumping position.

Fig. 3 is asimilar view showing pumping means in depressed position;

Fig. 4 is a similar view showing pumping means locked; and

Fig. 5 shows the the pen. In external looks like any conventional pen of its type. v The barrel 1, is threaded at one end 2, to re- \ceive therein vthe threaded end 3 of a pen holding tube 4, Fig. .5.

The tube 4 is bored to receive therein the pen engaging ller plug 5, which is suitably channeled as at 6 to supply ink from the barrel 1 to the associate pen 7, this latter being locked in the bore 8 in tube 4 in the usual manner by friction.

The plug is provided with a second bore 9 which is located centrally thereof, and into which is mounted an extended vopen ended tube 10, the bore 11 of which merges into said central bore 9. Thus the bore 9 is virtually extended to the end of the tube 10, whichy is capped with a Iiange'd disc-like cap 12, the diamet'er'of which is smalle than the bore dfdthe barrell as may be noted in Figs. 2, 3

The. barrelzl is provided with a bore 13 ^which forms the main ink reservoir, and is further provided with a bored closure 14,

filler end removed from 5 which is located Inear the' plunger'end of the appearance, my present peni barrel, and is bored as)at 15,\to peifnit the passing therethrough of the stem- 16 of a reciprocal piston 17, which piston is made of cork or other .suitable resilient substance and which lits the bore 13 snugly. i 55 The barrel 1 is smoothly recessed as at 18, Fig. 2 to receive therein a reciprocal, threaded, closed tubular plunger 19, the threaded int'erior of which engagesl with a threaded plug 20 which is formed on the end of the 60v piston stem 16.

A coil spring 21 is mounted so as to en. compass the stem 16 with one end restin on the face of the closure 14, and its other en resting under the shoulder formed by the 65 threaded plug 20, thus to normally keep the piston 17 vin retracted position, as in Fig. 1. With the pen empty of ink, and in normal;` ly closed position, as in Figs. 1 and 4, the plunger 19 is unscrewed from the closed posi tions shown in both'last noted figures, to the position shown in Fig. 2. This action unlocks the piston and frees it fora reci rocating movement, as the plunger 19 t us becomes an extension of the piston stem 16.

`lpen is then inserted in to a supply of ink and the plunger 19 reciprocated by a. plurality of strokesv to the limit of its movement, as -in Fig. 3, and each reciprocation causes a small amount of-ink to be vdrawn into the reservoir 13, until thereservoir islled.

Continuedpumping action of the piston 17 aftr the reservoir is filled does no harm, as the excess ink is merely pumped linto and .95

- out of thepen through the bore 6.

The pen is without valves of any kind and its action `in filling is as follows:

`When filling, the penis held in vertical position with the point 7 in the ink supply. 90 I A downward pressure upon the plunger 19 expels air from the reservoir 13, release of the plunger causes the spring 21 to retract the piston 17, and inkl iss-drawn upwardly through the bores 6, 9 and 11. The ink there- 95 after flows down the youtsideof the tube 10 to lodge in the surrounding chamber, which gradually fills up under repeated short strokes. of the plunger. The actual lilling operation is verv rapid and sure.

With the plungerunlocked, the point of the e i After lling the pen as described, the.

plunger 19 is then screwed back to the position shown in Figs. 1 and 1, and the reciproeating parts are thus locked against accidental movement and loss of ink.

`It will further be noted that owing to my present feature of shortening the lling stroke, I am able to make the pen with a larger relative ink reservoir capacity, at the same time keeping the length of the pen to its shortest relative length. Further, all operative parts of the device, excepting the non-corrosive piston, Vare all exterior to the ink reservoir. v

Having thus described my invention what I claim is: i

1. In a fountain pen a barrel, a pen point thereon, a means on said pen for conducting ink to the interior of saidbarrel, a reciprocating piston, slidably mounted in said barrel, a piston rod on said piston, and a means for adjustably varying the length of the stroke of said piston, connected to the outer end of said rod at the outer end of said barrel.

2.- In a fountain pen a barrel, a pen point thereon, a means on said pen for conducting ink to the interior of said barrel, a reciproeating piston, slidably mounted inl said barrel, a piston rod on said piston, a member, connected to the outer end of said rod, for adjustably varying the length of the stroke of said iston by adjustably varying the positin o end, and a part on said barrel, for limiting the relative position of said member with relation to said end, thereby locking s aid piston in position in said barrel.

3. In a fountain pen a barrel, a pen point thereon, ameans on said pen for conducting ink to the interior of said barrel, a reciproeating piston, slidably mounted ,in said barrel, a bored closure on said barrel near the outer end thereof, a piston rod on said piston, slidably mounted in the bore of said closure, a threaded end-piece at the outer end of said rod, a threaded member, in adjustable threaded engagement with said end piece, slidably lmounted on a part of said barrel at the outer end of the latter and a part on said barrel for limiting the position of said member on said end piece, whereby the length of the stroke of said piston may be adjusted by yadjusting the'position of said member with relation to said end piece, and said piston being lockable by the abutment of the inner end of said member against said limiting part.

4. In a fountain pen a'barrel, a pen point thereon, a means on said pen for conducting ink to the interior of said barrel, a reciprocating piston, slidably mounted in said barrel,

a bored closure on said barrel near the outer end thereof, a piston. rod on said piston, slidably mounted in the bore of said closure, a

said member with relation to said Nthe position'of sai plungeron said cap and moana threaded cap at the outer end of said rod, an outwardly open recess in the outer end of said barrel, outwardly of said closure, and an interiorly threaded plunger, in adjustable engagement with said cap, slidably mounted 1n said recess, whereby l theA length of the lstroke of said piston may be adjusted by ad` ,slidably mounted in the part of said arrel outwardly of said means, a bored closure near the outer end'of said barrel, a piston rod on said piston, slidably mounted in the bore of said closure, a threaded cap at the outer end of said rod, an outwardly open recess in the outer end of said barrel, outwardly of said closure, and aninteriorly threaded plunger, in adjustable engagement with said cap, s idably mounted in said recess, `whereby the a0 length of the stroke of said piston may adjusted by 'adjusting the position of said plunger on said cap, and said piston belng lockable by the abutment of the inner end of said plunger against said closure.

6. In a'fountain pen a barrel, a pen point v thereon, a means on said pen for conductlng ink to the interior of said barrel, a reci rocat-v in piston, slidably mounted in said arrel, a gered closure in said barrel near the outer end thereof, a piston rod on said piston, slidably mounted in the bore of said closure, a threaded cap at the outer end of said rod, an outwardly open recess in the outer end of said barrel, outwardly of said closure, an interiorly threaded plunger, in adjustable engagement with said cap, slidably mounted in said recess, whereby to move said piston in one direction, and a resilient means, connected at one end thereof to a part on said barrel and at the other end thereof to a part on said rod,lwhereby to move said piston in the opposite direction, the length of the stroke of said piston bein adjustable by means of said piston being lockable by the abutment of the inner end of said plunger against said closure. v

7. In a fountain pen of the class described a barrel, a pen point thereon, ink conducting means on said en,v extending into the intermediate part o the interior of said barrel, a

reciprocatin piston, slidably mounted in the part of said arrel outwardly of said means, a bored closure nearthe outer end of said barrel, a piston rod on said piston, slidabl mounted 1n the bore of-said closure, a threadyw ed cap at the outer end of said rod, an outward y open recess in the outer end of said barrel, outwardly of said closure, an in- 130 meaaie teriorly threaded plunger, in adjustable en gageinent with said cap, slidably mounted in said recess, whereby to move said piston in one direction, and a compression spring encompassing said rod and abutting at the inner end thereof against said closure and at the outer end thereof against said cap, wherebT to move said piston in the opposite direction,Y the length of the stroke of said piston being adjustable by means of the position of said plunger on said cap, and said iston being lockable by the abutment of the inner end of said plunger against said closure.

Signed at New York in the county of New York and State of New York, this 13th day o February, A. D. 1929.

CARMINE FABRIZO. 

